129326044 has 6 divisors (see below), whose sum is σ = 226320584. Its totient is φ = 64663020.

The previous prime is 129326023. The next prime is 129326047. The reversal of 129326044 is 440623921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 129325997 and 129326015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129326047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16165752 + ... + 16165759.

Almost surely, 2^129326044 is an apocalyptic number.

It is an amenable number.

129326044 is a deficient number, since it is larger than the sum of its proper divisors (96994540).

129326044 is a wasteful number, since it uses less digits than its factorization.

129326044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32331515 (or 32331513 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 129326044 is about 11372.1609204232. The cubic root of 129326044 is about 505.7027682513.

Adding to 129326044 its reverse (440623921), we get a palindrome (569949965).

The spelling of 129326044 in words is "one hundred twenty-nine million, three hundred twenty-six thousand, forty-four".